Lubricator for hoisting-engines.



R. RUEMELIN.

LUBRIGATOR FOR HOISTING ENGINES.

APPLICATION ULEB DBU.11.1909.

1,1 1 9,880. Patented Dec. 8, 1914.

2 SHEETS-SHEET 1.

/UTOHNEYS R. RUEMELIN.

LUBBIOATOR FOR HOISTING ENGINES.

APBLIoA'rIoH FILED Dnc. 11. 1909.

1 1 1 9,880, Patented Dec. 8, 1914.

2 SHEETS-SHEET 2.

'NE MORRIS PETERS C0., PHOTU-LITHD.. WSNINGFUN. D, C

p vide a lubricator arranged to act as a thrust RICHARD RUEMELIN, OF PHILADELPHIA, PENNSYLVANIA.

Lnnnroa'ron ron Hermine-ENGINES.

Specification of Letters Patent.

l Appucanonalea December 11,1909. serial No. 532,57.

To all whom it' may concern Be it'known that LNRICHARD RUnMnLIN, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and Improved Lubricator ing is a full, clear, and exact description.

The principal objects of the present invention are: to provide a lubricator for the thrust pin of a hoisting engine drum; `to provide a lubricator of the character described adapted to operate as a splash lubricator; to provide `a splash lubricator of simplified andetlicient form; and to probearing for a windingdrum shaft.

One embodiment of the present invention is 'disclosed in the structure illustrated `in the accompanying drawings, in which like characters of reference denote corresponding parts in all the views, and in which- Figure 1 is l a horizontal section of a.

winding drum, bearing box, shift mech-` anism, shaft, and lubricator connected therewith, and constructed in conformity with perpendicular to that shown` in Fig.p1."

the present invention; Fig. 2 `is a cross section of the lubricating chamber, taken on the line 2-2` in Fig. 1. The lubricator in this figure is shown as rotated to a position Fig. 3 is a cross section taken on the line `3,-3 in Fig. 4, of a moditied `form of `the present invention; Fig. l is a longitudinal section, taken on the line 4-4 1n Fig. 3, of

. the same modified form of the invention;

liig isa detail 4view in cross section of a form resembling that shown in Fig. 2 and slightly `modified therefrom.

ing shaft` of a rotary drum hoist, its employment is not limited to such construction. It

` of to supply oil to a thrust bearing, wherein the` axle or shaft toy which the device `is `apl plied is diminishedin diameter to form `the said bearing, and where the box containing l iszsecured upon the end of a shaft 8 by means of screw threads formed thereon; as illustrated in Fig. 1 ofthe drawings.` The While the invention is shown in the presl ent drawings in its application to the drivl between the rear face ofthe said lubricator' and the bearing box 11 `provided for` the shaft 8. `The lubricator is thus rigidly secured to the shaft 8 and `rotates therewith. Thelubricator rotates within achamber 12 formed by a box-like casing 13, shown in section` in` Fig. 1 of the drawings. The casing 13 is machined at the inner end to form a close joint between the face thereof and the face of the bearing 11.` The casing 13 is a hollow metal` casting, formed preferably in the manner shown in F igs.` 1 and 2, wherein the said casing is secured by means of bolts 14, 14 tothe said bearing 11 and by means of screw nuts 15, 15. In the upper side of the said casing 13 is formed an oil feed opening 1G. Through the reinforced center of the casing 13 is extended a perforation, suitably threaded to `receive a flat threaded `feed screw 17,` the end 18 whereof is held in contact with and forms a bearing for a thrust pin 19. At this point the pressure is so excessive that the heat` and wear would likewise be excessive if :not thoroughly and liberally lubricated. `This is accomplished by the construction and arrangement herein described. Rigidlv conneeted with the screw 17 and extended there- .from is a crank 20, having a handle 21, as shown in Fig. lof the drawings. 1t `is by means of the crank 20 that the screw 17 is rotated to press upon the thrust pin 19 to force the same against a cross bar 22, whereby the winding drum A is shifted on the shaft Sto frictionally engage the driving mechanism of the hoist. l y l It is not considered necessary to describe the `construction or `operation of the hoist-` ing machine with which this invention is illustrated to show the application thereto. To prevent confusion, however. 1t is deemed wise to say that the letter B designates the large ratchet wheel with which `the drunrA` is provided, and which is usually attached by suitable screws to the end flange C. Also that the letters `13,1) designate a thrust washer with which the hub of the drum is` usually provided for holding the drum in position on the shaft 8.` For the purpose of understanding the present invention, it is only necessaryto know that the drum is` shifted laterally on-the shaft `811:0 .berostra'rns Parnu orrion Patented Dec.sl,i1a11.a

4tween the said end 18 and pin 19. This is done by the lubricator 7.

Several forms of t-he lubricator constructed in accordance with the present invention are shown in the accompanying drawings. In all of the forms there is provided one or more vanes which extend from the central opening provided to pass the screw 17 and the end 18 thereof. At the end of the vanes 23, removed from the opening above set forth, is provided a curved wall .24. The wall .24 maybe segmental, as shown in Fig. 2, or continuous, as shown in Figs. 3 and 4. Nhether in the segmental or cylindrical form, the ends are partly closed by partitions 25, 25. These partitions, in conjunction with the wall 24, form cup-like or bucket-like devices for holding or scooping up the oil contained in the chamber 12. Vhether formed in the segmental or cylindrical form the lubricating ydevices are rigidly attached to `rotate with .the shaft 8.

In the form illustrated in Fig. '1, the lubricators are projected from a solid cylindrical body portion 26, suitably perforated and threaded to form a long nut for'mountingupon the shaft 8, the threads and construction throughout being formed sufliciently heavy and strong Sto enable the body portion 26 to be used as a nut to withstand the end thrust of :the shaft .8. This is most desired "by me for the construction of the lubricator.

In the form illustrated in Figs. 3 and 4 there is provided a collar 27 `arranged `to be slipped over the shaft 58 land to be held thereon by 4means of suitable screws inserted through the flange of the "collar, and through perforations .28, 28 formed therein. In this view the vanes :are vdesignated by the numeral 23".

In the lform illustrated in Fig. 5 the lubricator iis formed of one or more small sections, wherein the vanes 23a and the wall 24 are joined by the partitions 25a.. The partitions 25a yon the one side are provided with .perforations .29, 29. The perforations 29, 29 serve to secure the small bucket-like devices to a lsuitable thrust bearing face vor plate provided for that purpose.

The variations illustrated in .the drawings as to the forni and arrangement of theva'nes bear the universal feature in that they, when rotated, form constantly rising and upwardly carrying buckets or receptacles, adapted to lift the oil from the bottom of the chamber 12 and to deliver the same directly upon thebearing point, which in the present adaptation is the end of the thrust pin 19 and the end 18 of the vscrew 17.

The lubricator is mounted entirely separate on the drum shaft from the part which is to be lubricated, so that the lubricator is acting even when there is no friction or heating. The lubricator consists of distinct buckets having an outer flange or rim and an inner flange with a detlector or partition to 'throw the oil toward the friction point. The buckets are arranged to cover a considerable portion on each side of the friction point, thus giving a greater cooling action and avoiding the necessity of adjustment. The buckets are arranged opposite each other so that the oil drops from the raised buckets to the bottom bucket. rIhe device operates by simple splash lubrication; the oil falls through space and in splashing upon the friction pin produces thorough and broad lubrication by impact. `The oil is raised by buckets to an inclined position, held by centrifugal force, and is released by gravity in the highest position. The oil falls through space upon the friction surface and then falls into the lower bucket, thus assuring a filledbucket below for its successful operation, even vwhen there is but little oil in the casing. The oil, in falling through space from `one bucket to the other, is cooled thereby, assuring better lubricating conditions. As the lubricator is mounted separate from the thrust pin, it continues to lubricate vand cool the friction point while the drum 'shaft is 4revolving and when the thrust pin and screw are separated.

Having thus described myv invention, what I claim as -new and desire to secure by Letters Patent is 1. The combination,-with a drum shaft, of a thrust pin having a lengthwise movement in said shaft and .projecting beyond the outer end thereof, afeed screw mounted to contact with the outer end yof said pin and force it inwardly, a lubricator .casing encircling Ithe projecting end lof said pin and adapted to contain .a .supply .of oil, a lubricator -mounted to revolve within said casing and having a 4peripheralfwall encircling the outerend lof said pin andend walls projecting inwardly from the outer portion of said peripheral wall, .a space being provided between said end walls to fallowucontact of ysaid screw with said pin, said peripheral `wall having .inwardly projecting vanes :thereon forming, ywith lsaid peripheral and end walls, oil supporting buckets, .the point of contaotof said .pi-n and screw being within the fconnes of the tinnen-and outer of said pin, a lubricator casing encircling the projecting end of said pin and adapted to contain a supply of oil, a lubricator mounted to revolve within said` easing and having buckets, each comprising `an outer peripheral wall and end walls coperating` to scoop up the oil in said casing, the openings to said buckets being opposite the point of contact of said vpin and screw and spaced therefrom, the oil falling bygravity when `said buckets are inverted during `their revolution and splashing the point of contact of said pin and screw.

3. The combination, with a drum shaft, of a thrust pin having a longitudinal movenient in said shaft and projecting beyond the outer end thereof, a feed screw mounted to contact with the outer endof said pin. a lubricator casing inclosing `the outer end of said pin and adapted to contain a supply of oil, a lubricator mounted to revolve Within said casing and having oil buckets, the point of contact of said pin and screw being between said buckets and spaced therefrom and in the path of the oil falling by gravity from one bucket to another, the zone of lubrication of the bearing surfaces of said pin and screw beingbetween the end walls of said buckets, said buckets being open on the side opposite the contact point of said pin and screw, the oil dropping through the gap between the bucket and pin and lubricating by impact the bearing surface of said pin and screw.

4. The combination, with a shaft, of a thrust pin having a lengthwise movement in said shaft and projecting beyond the outer end thereof, a feed screw mounted to contact with the outer end of said pin to force it inwardly, a lubricator casing, a lubricator mounted to revolve with said shaft within said casing and having peripheral buckets formed thereon, said buckets having inwardly projecting vanes provided with re cesses therein and peripheral walls coperating `with said vanes to retain the oil against centrifugal force, said buckets being open opposite the point of contact of said pin and screw, the oil falling) from one bucket to the other as said lu ricator revolves and bridging the gap between opposite vanes and lubricating the bearingof saidpin and screw by impact therewith.

In testimony whereof I havesigned my name to this specification in the presence of two subscribing witnesses.

RICHARD RUEMELIN.

lVitnesses W. H. Dunn, Jr., L. A. KALER.

Copies of this patentmay be obtained for live cents each, by addressing the Commissioner of Patents,

Washington, D. G." 

